"I bit the bullet and ordered the Tuffwing cable.
About cam trigger type, when you go to Gimbal settings in Mission Planner cam trigger type will switch back to servo. Guess it's a bug."
"I can confirm it is not working.
I can measure 3.3v from the aux pins on the Pixhawk but when soldered to the step up board I can only measure 0.1v going in.The sparkfun will output 3.6v to CHDK but that is not enough to trigger.....
Any idea how I…"